Nvidia has a Microsoft-like market share in the workstation market and judging by this latest announcement, the company has no intentions of giving up share anytime soon. The new Quadro FX 4700 X2 is based on the G92GL GPU, which is used in different variants for the Quadro FX 3700, GeForce 8800GT, 8800 GTS 512, as well as the (upcoming) 9800 GTS, 9800 GTX and 9800 GX2. In the world of Quadro cards, this chip debuted as Quadro FX 3700.
Both of the GPUs used for the 4700 X2 have their own gigabyte of video memory for a grand total of 2048 MB.
Nvidia did not release any clock speed information, but it is relatively conclusive that the 2 GB of GDDR3 memory is clocked at 800 MHz in DDR mode (1.6 GTransfer/s). Given the fact that GPUs are cooled in a single-slot mode on desktop product as well (8800GT, 8800GTS512, FX3700), Nvidia may have slowed down the 3D capabilities to survive the grueling qualifying process. The main difference between consumer grade and professional products is extreme testing since these cards are used in mission-critical systems.
But this new product actually reminds us not really of the 9800GX2, but rather the GeForce 7900GX2/7950GX2 and Quadro FX 5500. Like back then, the engineers layered two GPUs on top of each other.
3D Rendering is supported for four displays, which is a welcoming feature for the world of professional simulators. Resolution-wise, the Quadro FX 4700 X2 comes with quad dual-link TMDS transmitters, supporting a maximum resolution of 3840×2560 pixels across four screens, for a total of 15360 x 2560 or 7680 x 5120 pixels (four monitors next to each other or two displays on top of two displays). The refresh rate is only 24 Hz, but remember, you can display 39 million pixels using a single graphics card.
The board is available now. Pricing has not been announced.